Mondi plc
  (Incorporated in England and Wales)
  (Registered number: 6209386)
  LEI: 213800LOZA69QFDC9N34
  LSE share code: MNDI      ISIN: GB00B1CRLC47
  JSE share code: MNP

  6 October 2022

  Notification of Major Interests in Shares

1. Issuer Details:

    ISIN: GB00B1CRLC47

    Issuer Name: Mondi plc

    UK or Non-UK Issuer: UK

2. Reason for notification:

    An acquisition or disposal of voting rights

3. Details of person subject to the notification obligation:

    Name: Public Investment Corporation Soc Limited

    City of registered office: Pretoria

    Country of registered office: South Africa

4. Details of the shareholder:

    Full name of shareholder(s) if different from the persons(s) subject to the
    notification obligation, above: N/A

    City of registered office: N/A

    Country of registered office: N/A

5. Date on which the threshold was crossed or reached:

    4 October 2022

6. Date on which Issuer notified:

    6 October 2022
        7. Total positions of person(s) subject to the notification obligation:

                            % of voting rights            % of voting rights   Total of both in % Total number of
                           attached to shares              through financial      (8.A + 8.B)     voting rights held
                              (total of 8. A)             instruments (total                      in issuer
                                                           of 8.B 1 + 8.B 2)

Resulting situation
on the date on      8.030                              N/A                     8.030                38,991,667
which threshold was
crossed or reached

Position of previous
notification (if         7.012                         N/A                     7.012                N/A
applicable)


        8. Notified details of the resulting situation on the date which the threshold was
              crossed or reached:

        A: Voting rights attached to shares


Class/type of          No. of voting rights                           % of voting rights
shares
ISIN code (if          Direct                  Indirect               Direct                  Indirect
possible)              (DTR5.1)                (DTR5.2.1)             (DTR5.1)                (DTR5.2.1)


GB00B1CRLC47           38,991,667              N/A                    8.030                   N/A

Subtotal 8.A           38,991,667                                     8.030


        B1: Financial Instruments according to (DTR5.3.1.1 (a))

            Type of               Expiration     Exercise/               Number of voting       % of voting
            financial             date           Conversion              rights that may be     rights
            instrument                           Period                  acquired if the
                                                                         instrument is
                                                                         exercised/
                                                                         converted.

            N/A                   N/A            N/A                     N/A                    N/A
                                     Subtotal 8.B 1


B2: Financial Instruments with similar economic effect according to (DTR5.3.1R.(1)
  (b))

   Type of       Expiration    Exercise/  Physical or              Number of         % of voting
   financial     date          Conversion cash                     voting rights     rights
   instrument                  Period     settlement


   N/A           N/A           N/A            N/A                  N/A               N/A

                                              Subtotal 8.B 2

9. Information in relation to the person subject to the notification obligation:
   2. Full chain of controlled undertakings through which the voting rights and/or
   the financial instruments are effectively held starting with the ultimate controlling
   natural person or legal entities (please add additional rows as necessary)

                                                      % of voting rights
                               % of voting rights
                                                      through financial     Total of both if it
                               if it equals or is
                                                      instruments if it     equals or is higher
   Name                        higher than the
                                                      equals or is higher   than the notifiable
                               notifiable
                                                      than the notifiable   threshold
                               threshold
                                                      threshold
    Public Investment
    Corporation Soc Limited
                                  8.030                                      8.030


10. In case of proxy voting:

    Name of the proxy holder: N/A

    The number and % of voting rights held: N/A

    The date until which the voting rights will be held: N/A

11. Additional information: N/A

12. Date of completion:

    6 October 2022
 13. Place of completion:

     Pretoria, South Africa


Sponsor in South Africa: Merrill Lynch South Africa (Pty) Ltd t/s BofA Securities